Seungbum Lim

Title: Innovations of Seungbum Lim

Introduction

Seungbum Lim is a notable inventor based in Cambridge, MA, who has made significant contributions to the field of power conversion technology. With a total of two patents to his name, Lim's work focuses on enhancing the efficiency and effectiveness of power converters.

Latest Patents

One of Lim's latest patents is titled "Wide-operating-range resonant-transition soft-switched converter." This invention features a converter circuit that utilizes multiple half-bridge switching cells, which can be selectively controlled to convert a source voltage to a desired output voltage across wide voltage and power ranges. The design ensures zero-voltage switching and/or zero-current switching, enhancing the overall efficiency of the power conversion process. The circuit includes capacitive elements and a magnetic energy storage element that couples the center switching nodes of the half-bridge switching cells. A controller is integrated to monitor and apply switching patterns, ensuring minimal or zero voltage or current across the components.

Another significant patent is the "Method and apparatus to provide power conversion with high power factor." This invention involves a power converter circuit that rectifies a line voltage and applies the rectified voltage to a stack of capacitors. The voltages on these capacitors are then coupled to a series of regulating converters, which convert them into regulated output signals. These signals are combined to achieve a desired DC output voltage, while the input currents of the regulating converters are modulated to enhance the power factor of the converter.

Career Highlights

Seungbum Lim is affiliated with the Massachusetts Institute of Technology, where he continues to innovate and contribute to advancements in power conversion technologies. His work is characterized by a commitment to improving the efficiency and functionality of electrical systems.

Collaborations

Lim has collaborated with esteemed colleagues such as David J. Perreault and David M. Otten, further enriching his research and development efforts in the field.

Conclusion

Seungbum Lim's contributions to power conversion technology through his innovative patents demonstrate his expertise and commitment to advancing the field. His work not only enhances the efficiency of power systems but also paves the way for future innovations in electrical engineering.